5U0S:
reference: Mediator structure and rearrangements required for holoenzyme formation., Tsai KL, Yu X, Gopalan S, Chao TC, Zhang Y, Florens L, Washburn MP, Murakami K, Conaway RC, Conaway JW, Asturias FJ, Nature. 2017 Mar 1. doi: 10.1038/nature21393. PMID: 28241144

This OCA Structure page
uses Jmol, developed by the Jmol Development Team (documentation).